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add value helper #4

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add value helper #4

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21 changes: 21 additions & 0 deletions value.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
module.exports = class Value {
constructor (value) {
this._value = value
this._needsRender = true
}

render () {
if (!this._needsRender) return false
this._needsRender = false
return true
}

get value () {
return this._value
}

set value (v) {
this._needsRender = true
this._value = v
}
}